This is the 346th most frequent Croatian word.
ujedno
"Ujedno" means "at the same time" or "simultaneously" in English.
Here, "ujedno" is used to mean "at the same time" or "also," connecting two qualities of the meeting.
Ovaj sastanak će biti informativan, a ujedno i zabavan.
This meeting will be informative and at the same time fun.
In this sentence, "ujedno" highlights the coexistence of two relationships: being a colleague and a best friend.
On je moj kolega na poslu i ujedno najbolji prijatelj.
He is my colleague at work and at the same time my best friend.
Here, "ujedno" is used to show that the project has dual characteristics: being challenging and fostering development.